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33 Posts

Posted - 06 Sep 2023 :  05:42:05  Show Profile  Reply with Quote
My 72 Fastback normally idles at 1000rpm. Recently it has chosen to idle at 1500rpm when hot. Nothing has been touched, what could cause this change?


United Kingdom
41 Posts

Posted - 13 Sep 2023 :  19:13:32  Show Profile  Reply with Quote
Don’t know of anything specific to the model, but there are a couple of possibilities I can think of. First, and most obvious I guess, is to check the throttle linkage to see if it is binding somewhere, or maybe worn bushes. Second, check if there is any air leakage into the inlet manifold engine side of the carburetter - that could cause a rise in idling revs. Good luck with the search. John

John D
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